# The Mesa 3D Graphics Library

# Mesa 9.1 Release Notes / date February 22, 2013

Mesa 9.1 is a new development release. People who are concerned with stability and reliability should stick with a previous release or wait for Mesa 9.1.1.

Mesa 9.1 implements the OpenGL 3.1 API, but the version reported by glGetString(GL_VERSION) or glGetIntegerv(GL_MAJOR_VERSION) / glGetIntegerv(GL_MINOR_VERSION) depends on the particular driver being used. Some drivers don't support all the features required in OpenGL 3.1. OpenGL 3.1 is only available if requested at context creation because GL_ARB_compatibility is not supported.

## MD5 checksums

    tbd

## New features

Note: some of the new features are only available with certain drivers.

- GL_ANGLE_texture_compression_dxt3
- GL_ANGLE_texture_compression_dxt5
- GL_ARB_ES3_compatibility
- GL_ARB_internalformat_query
- GL_ARB_map_buffer_alignment
- GL_ARB_shading_language_packing
- GL_ARB_texture_buffer_object_rgb32
- GL_ARB_texture_cube_map_array
- GL_EXT_color_buffer_float
- GL_OES_depth_texture_cube_map
- OpenGL 3.1 core profile support on Radeon HD2000 up to HD6000 series
- Multisample anti-aliasing support on Radeon X1000 series
- OpenGL ES 3.0 support on Intel HD Graphics 2000, 2500, 3000, and 4000

## Bug fixes

TBD -- This list is likely incomplete.

## Changes

- Removed VAAPI state tracker (unmaintained and broken)
- Removed i965's broken hardware implementation of GL_NV_vertex_program
- Removed swrast support for GL_NV_vertex_program
- Removed swrast support for GL_NV_fragment_program
- Removed OpenVMS support (unmaintained and broken)
- Removed makedepend build dependency